Horizon Cloud Service Next-Gen will perform scheduled maintenance on the United States VM Hub during the window listed below.
The East US 2 Regional Clusters will remove support for the Legacy Certificate Authority, as outlined in the previously communicated KB article: https://kb.omnissa.com/s/article/6000824
Maintenance Window: • Start: Tuesday, September 23, 2025 – 05:30 UTC • End: Tuesday, September 23, 2025 – 10:30 UTC
Impact: • Virtual Machines (VMs) which couldn’t be updated to new Omnissa Certificate Authority, will lose connectivity to the Horizon Cloud next-gen control plane after this update. This means: • Users won’t be able to access the affected Virtual Machines (VMs) and applications. • The VMs will show as "Unavailable" in the Horizon Universal Console. • For instructions on how to recover and repair these affected VMs, please refer to following KB article: Repairing and Recovering Single-session and Multi-session Pool VMs That Lose Connectivity to Horizon Cloud Next-Gen after Root CA Update (6000944) (https://kb.omnissa.com/s/article/6000944). • VMs which were already rotated to new Omnissa Certificate Authority, are generally unaffected except Next-Gen desktop or application users may experience intermittent access issues. However, retry should succeed.